package com.guw.Swing;

import javax.swing.*;
import java.awt.*;
import java.net.URL;

public class JButtonDemo1 extends JFrame {

    public JButtonDemo1(){
        Container container = this.getContentPane();

        URL url = JButtonDemo1.class.getResource("m11.png");
        Icon icon = new ImageIcon(url);

        //单选框
        JRadioButton radioButton1 =new JRadioButton("1");
        JRadioButton radioButton2 =new JRadioButton("2");
        JRadioButton radioButton3 =new JRadioButton("3");

        //由于单选框只能选择一个,分组
        ButtonGroup group=new ButtonGroup();
        group.add(radioButton1);
        group.add(radioButton2);
        group.add(radioButton3);

        container.add(radioButton1,BorderLayout.CENTER);
        container.add(radioButton2,BorderLayout.EAST);
        container.add(radioButton3,BorderLayout.WEST);

        this.setVisible(true);
        this.setBounds(100,100,500,600);
        this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    }

    public static void main(String[] args) {
        new JButtonDemo1();
    }
}

